Method for recovering valuable metals from waste lithium-ion power batteries

A power battery and valuable metal technology, applied in battery recycling, waste collector recycling, recycling technology, etc., to achieve the effects of reliable process, convenient adjustment of processing capacity, and easy industrial production

Inactive Publication Date: 2016-06-15
JIANGXI UNIV OF SCI & TECH
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  • Method for recovering valuable metals from waste lithium-ion power batteries

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Embodiment Construction

[0015] The present invention will be described in further detail below according to the accompanying drawings.

[0016] A method for recovering valuable metals from waste lithium-ion power batteries, which is carried out in the following steps:

[0017] (1) Take 5 kg of waste lithium-ion power battery after roasting, pour it into a low-intelligence crusher, add water at a concentration of 50% of the pulp, and flow into the impact crusher after crushing, add water at a concentration of 30% of the pulp, and then After crushing, it flows into the ball mill for grinding, and the grinding time is 10 minutes. Grinding discharge products flow to the single-layer vibrating screen for vibrating screening. Water can be added during sieving to speed up the sieving speed.

[0018] (2) The products on the sieve flow to the belt conveyor by itself, and the belt magnetic separator is installed at the front end of the conveyor to obtain metal Fe, and the non-magnetic products enter the shak...

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Abstract

The invention discloses a method for recovering valuable metals from waste lithium-ion power batteries and belongs to the field of recovery of the valuable metals. According to the method, discharging and calcination are performed in advance, a low-intelligent crusher and an impact crusher are adopted for secondary crushing, then crushed products enter a ball mill for scrubbing, screening and classification are performed by the aid of a vibrating screen, oversize products and undersize products are separated through beneficiation methods of magnetic separation, tables, regrinding and the like, and four products including iron, copper, aluminum and lithium cobalt oxide powder containingcarbon are obtained. The method has the advantages of environmental protection, low cost, reliable technology, easiness in industrial production and the like.

Description

technical field [0001] The invention belongs to the technical field of recovering valuable metals, in particular to a method for recovering valuable metals from waste lithium-ion power batteries. Background technique [0002] Lithium-ion power batteries are an important part of new energy vehicles. With the popularity of new energy vehicles, the amount of scrapped power batteries is also astonishing. In 2015, the cumulative amount of scrapped domestic power batteries was about 20,000 to 40,000 tons. By 2020, the cumulative amount of scrapped electric vehicle power batteries in my country will reach 120,000 to 170,000 tons. Because waste lithium-ion power batteries contain mercury, cadmium, lead and electrolyte solutions, they have a great impact on the environment. On the other hand, lithium-ion power batteries are rich in valuable metals such as Cu, Al, Fe, Co, Li, etc., and have extremely high recycling value. [0003] How to recover valuable metals from waste power bat...

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Application Information

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IPC IPC(8): C22B7/00C22B15/00C22B21/00C22B23/00H01M10/54
CPCC22B7/005C22B15/00C22B21/0069C22B23/00H01M10/54Y02W30/84Y02P10/20
Inventor 吴彩斌石贵明鄢发明李献帅
Owner JIANGXI UNIV OF SCI & TECH
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